Windmill and derrick



2 Sheets-Sheet 1.

(ModeL) I. W. LAMB. INDMILL AND DERRICK.

No. 276,831. Patents May'1,'188 3 Wz'irzaffar: V

. (92M 2%. Wad/$6 (ModeL) 2 Sheets-Sheet 2.

A V I. w, LAMB.

WINDMILL ANDDERRIGK. No. 276,831. Patented May 1,1883.

N. Paws Phfln-Likhugnpher, Washingwn. D.C.

UNITE STATES PATENT OFFICE.

ISAAC W. LAMB, OF PARSHALLVILLE, MIOHIGAN.

WINDMILL AND DERRICK.

SPECIFICATION forming part of Letters Patent No. 276,831, dated May 1, 1883.

Application filed February 11,1881. MOaQi.)

To all whom it may concera:

Be it known that LISAAG W. LAMB, of Parshallville, in the county of Livingston and State of Michigamhave invented a new and useful Improvement in Windmills and Derricks; and I do hereby declare that the following is such a full, clear, and exact description thereof as will euableothers skilled in the art to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, in which--- Figure 1 represents one of my improved windmills attached to the roof of a building, while the water-drawer is set at a little distance to the right and connected with the windmill, as hereinafter explained. In the present case the'model and the drawings represent the building on a much smaller scale than the other parts in order to bring the whole within convenient dimensions. Fig 2 is a rear elevation of the windmill, derrick, and water-drawer partly in section, showing the construction of the parts.

Similar letters of reference indicate corresponding parts in the several drawings.

The chief design of my invention is to produce a windmill and derrick which shall be simple, durable, and portable.

- vane; 12 r v, the small vanes, or vanes of the other parts are attached, or by which they are wheel. Grepresents the rod which transmits the motion from the crank to the arm E. B represents the wooden tube to which all the supported. at representsabossfattached to the lower end of the rod 0. The other parts will be referred to in the description which follows.

I will now describe the my windmill.

First. I attach each fan of the wheclldi reetly to the hub of the same by means of a shortspoke or arm about six inches in length.

fans together. wheel it is made capable of running at a very peculiar features ,or

1 My usual method of securing the spokes to the hub is to screw them in. I then bolt or rivet a fan to each spoke and do not connect the By this construction of the high rate of speed without suffering injury, be: cause the centrifugal force at any single point is limited to that which comes from a single fan.

, Second. I attach the wheel to a shaft ofconvenient length, on which I secure an eccentric or crank, g, for transmitting the motion to the reciprocating rod 0. On the same shaft I also secure by set-screws two cones for bearings, (marked a and b.)

Third. I support the wheel-shaft on a yokeshaped frame, 3 which I make of one piece. To the bottom of this yoke y, I attach an iron tube, D, having an inner diameter of about one inch, and having a length of three or four feet. To the same yoke, y, I also attach the large vane V. Within the tube D the reciprocating rod 0 is inserted, which rod is of sufficient length to extend a few inches below the tube, and to its lower end I secure a knob or boss four or live inches in diameter, for the purpose hereinafter explained.

I will next describe the construction of my derrick. This consists, first, of a wooden tube,

B, about six inches in diameter and. two feet and six inches in length, bound with iron bands at top and bottom, and having its bore or inner diameter of a size to receive the tubeD of the yoke before described; second, of four posts, P, so attached to the tube that their lower ends may be convenientlyfolded together when packed for shipment, and so that when set up they securely hold the tube in proper position; third, of the means for securing such posts to the tube B, as described in the preceding paragraph, which I will now describe more particularly. Four metal plates, f, about eleven inches in length, have each end of each bent out at an angle of forty-five degrees, leaving of the two adjoining plates, to receive the up per ends of the posts of the derrick. Suitable IOU ' boltsm, passing through the two projecting portions of the plates and through the upper ends of the posts, secure the tube, the plates, and the posts. I make the ends of the posts slightly thinner or smaller than the space between the plates, so that when the bolts are screwed up the tube will be rigidly clamped and held by the four plates, while the posts may be turned upon the bolts sufficiently to fold the four posts together attheir lower ends. Near the bottom of the derrick-tube I attach four staples and hooks, n, one directly against or on the same side with each post. Then to each post, on a line with the hooks of the tube, I attach eyes or staples which pass entirely through the posts, and on their outer ends screw-threads are cut to receive suitable nuts, m. The purpose or design in having these eyes or staples so attached to the posts is to make them adjustable for a short distance, so that afte the derrick is set up and the hooks of the tube are inserted into the eyes of the posts, then by turning the nuts on the outer ends of the eyesof the posts the lower end of the tube is rigidly secured in its position between the four posts of the derrick;

and since the upper end of the tube is firmly held in place by the plates heretofore described, the entire derrick is made secure and ready to receive the iron tube of the windmill frame or yoke.

The manner of setting up my derrick is as follows: The lower ends of the posts are'separated as far as desired, and the hooks n of the tube inserted in the eyes of the bolts m. Then the lower ends of the posts are sawed to the slant of the roof on which the derrick is to stand, and the derrick set on such roofand bolted fast. Then the nuts outside the posts are tightened, and the tube is thus fastened securely in proper position. boss from the lower end of the rod 0, and insert the iron tube of the windmill within the wooden tube of the derrick. and replace the boss on' the lower end of the pitman, and the windmill is ready for operation. By placing my derrick upon the roof of an ordinary farmbarn I require but one length of posts, and

, save in cost of derrick alone more than my whole mill and derrick cost. I transmit the motion of the reciprocating rod 0 of the windmill to the water-drawer by means of a crank like a bell-crank, or by means of two arms attached to an oscillating shaft, as shownin Fig. 2. One of these arms, E, engages atits inner end with the boss 01 of the rodGin such a manner that the downward movement of the boss d will impart motion to said arm E, while other means are required to impart the upward movement to the arm E. The arm E transmits its motion to a water-drawer or other apparatus by means of a wire or line, L. On the waterdrawer. end of the wire a suitable spring acts in such a manner that as the rod 0 of the windmill ascends, such spring, drawing on the" connecting wire, keeps the arm E up close against the boss of the rod 0. As the rod Ode- I then remove thescends, it presses down the arm E and draws the wire toward the windmill, thus operatingthelever which transmits motion to the shaft of the water-drawer. The movement back and forth of the wire and the arms will continue solong as the spring is permitted to impart motion in one direction tothe wire, and thus hold the arm E up against the boss d. If, however, by any suitable device, the action of the spring at the water-drawer end of the line or wire is overcome, the arm E, of its own weight, will remain down and not ascend with the boss d, attached to rod 0, as before, and as a consequence no motion will be given to the arms or the wire. In practice I find it best to have the arm E quite heavy, or else to have it drawn down by a spring of sufficient power to keep the wire or line L taut; but it is necessary that the spring S on the water-drawer shall be sufficiently strong to overcome the weight of the arm E, and of any spring which may be at tached to said arm. If preferred, a third arm, E, may be connected to the arms E and E, and a second wire, 01:, (shown in dotted lines in Fig. 2,) may connect such arm E with the lever \V ofthe water-drawer.

My windmill is designed especially with reference to attaching the same to the roofs of buildings, and the derrick is made in such a manner that the posts P may all be moved in until their lower ends meet by simply releasing the hooks n. The vanes 11, being each independent of the others and detachably secured to the hub of the windwheel, may be removed It is plain that I may have additional cranks E E, operated by the same rod, C, and its boss d, such boss d being made of such size as to permit the ends of several arms E to be in position to be moved downward by its motion. This enables me to have one wire L run from the windmill to the house and operate a churn. Another similar wire may connect the windmill with a pump at the barn, and yet another counect with a pump at the house; and in such case either apparatus may be stopped at any moment, while the windmill continues to move and when any such apparatus is so stopped its arm E, being held down entirely below the boss d,'will present no resistance whatever to the movement of the windmill.

What I claim as new, and desire to secure by Letters Patent, is

2. The combination of the tube B, the metal plates f, and their bolts 0, with the posts P of the derrick, substantially as herein explained.

3. The combination of the tube B, the metal plates f, and their bolts 0, with the posts P, the hooks n, and the bolts m, provided with eyes 2, adapted to receive the said hooks n, as and for the purpose specified.

4. In combination with the tube B, the metal plates f, their bolts 0, the posts 1?, and bolts m, provided with eyes :2, adapted to receive the hooks n, making the bolts m adjustable, as and forsthe purpose specified.

5. The combination of the reciprocating rod 0 with the detached arin E and a spring, S, so

Witnesses:

J A 003 S. GRISWOLD, 'JAMEs H. N ORBERT. 

